$ git clone -n https://src.fedoraproject.org/rpms/copr-rpmbuild.git /var/lib/mock/f41-build-side-1-3000499-36347/root/chroot_tmpdir/scmroot/copr-rpmbuild
Cloning into '/var/lib/mock/f41-build-side-1-3000499-36347/root/chroot_tmpdir/scmroot/copr-rpmbuild'...
$ git fetch origin cf92a23ff1d64285f887325defdfc7674c521f48:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/copr-rpmbuild
 * [new ref]         cf92a23ff1d64285f887325defdfc7674c521f48 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf92a23 Update copr-rpmbuild to 1.0-1